Mechanical movement.



PATENTBD MAY 21, 1907.

'-P. H. RICHARDS.

MECHANICAL MOVEMENT. 'APPLIGATION FILED APB. 23,1902.

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PTENTED MAY 21, 1907.

P. H. RICHARDS.

MECHANICAL MOVEMENT.

APPLIOA'HON FILED APR. za, 1902.

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No. 854,056. PATENTED MAY 21, 1907.

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HARTFORD,

To AMERICAN TYPCCRAPIIICv CoRroRA- FRANCIS H. RICHARDS, OF

ASSIGNMENTS, OF ONE-HALF CONNECTICUT, ASSIGNOR, BY MESNE TION, A CORPORATION OF NEV JERSEY.

MECHANICAL MOVEMENT.`

Specification of Letters Patent.

Patented May 21, 1907.

Application filed April 23,1902. Serial No. 104,211.6.

To all whom, it may concern.-

Be it known that I, FRANCIs H. RICHARDS, a citizen of the United States, residing at Hartford, in the county of Hartford and State of Connecticut, have invented certain new and useful Improvements in Mechanical Movement, of which the following is a specification.

This invention relates to the kinematic relationship existing among the co operative members of a device in which the actuation of a member is effected at some-point in the path of movement of a separateto-and-fro or reciprocative member.

My improved mechanical movement is adapted for use in a unit counting apparatus for a typographic composing machine. A particular feature of the present improvements relates, furthermore, to means whereby the aforesaid reciprocative member, though it may be effective to accomplish the actuation aforesaid, may on the other hand serve the purpose merely of initiating the movement of the actuatable member, which movement is continued and the said actuatable member definitely placed in a predetermined position by such means.

A mechanical movement embodying the present improvements comprises suitable mechanisms or devices capable of co-operation at some point, preferably adjustable in the path of movement to and 'fro of the reciprocative member, combined with means whereby upon such co-operative engagement and shifting of the actuatable member forward in the direction of its movement, this movement is continued by a supplemental actuator brought into action as the result of the initial or primary displacement of the actuatable member.

I have shown in the drawing accompanying the present specification, mechanical parts or members operatively connected with each other, and-in such embodiment constituting a disclosure of my present invention.

In these drawings, Figure 1 is a perspective view of such embodiment, the driving and driven or actuatable members being shown in this figure as being in engagement one with the other. Fig. 2 is a plan view of the various parts set forth in Fig. 1, but indicating the driving and actuatable members as having moved out of engagement with each in its travel to and fro.

other after the actuation of the latter. Fig. 3 is a side elevation of the parts in the position that they occupy in Fig. l. Fig. 4 is an end elevation corresponding to the side elevation of Fig. 3. Fig. 5 is a detail view representing the driving member as having disengaged itself from the actuatable member, and the latter as having assumed under the action of the subsidiary actuator one of its eXtreme or limiting, positions. Fig. 6 is a view corresponding to actuatable member as having been shifted through the instrumentality of the driving member and the subsidiary actuating mechanism to its opposite limiting position. Fig. 7 is a diagrammatic view designed to illustrate the relation between the to-and-fro paths of the reciprocative driving member and the point of actuation of the driven or actuatable member when the same is made adjustable in the line of travel of the reciprocating member, the position chosen being such as corresponds substantially to the middle point of the line of travel of the reciprocative member and also to points adjacent to the opposite ends of its line of travel.

Similar characters of reference designate corresponding parts in all the figures.

In embodying the present mechanical movement in an operative device susceptible of application to a mechanism or machine in which a modification of motion such as it is capable of accomplishing is desired, there will be included a member, herein designated as the driving member, so mounted that it is capable of a reciprocative movement under the control of suitable means, and an actuatable member with which the driving member is capable of engaging at some point In the embodiment herein disclosed, the relation is such that such engagement can take place during both of each to-and-fro movements. The construction of such driving member and the manner in which it is mounted is such as to enable this co-operative engagement to take place, and while I have illustrated the driving member as -moving in unison with a threaded or screw-like element, resulting, when the driving member is operated, in a longitudinal movement as well as a rotary movement of the driving member, it is not intended that the application of this inven- Fig. 5, illustrating the tion shall in all eases be restricted to the use of a driving member having a reciprocating and also rotary movement or a movement of this character. It is not intended that the application of this invention shall in all cases be restricted to the use of a driving member having a compound movement or a compound movement of such a character. I have illustrated, furthermore, the co-operative engagement as resulting from the engagement of a tooth-like projection on the Vdriving member with either one or the other of the side walls of a recess on the actuatable member.

In the drawings hereto attached, the driving member comprises a head 13, projecting from which is a tooth 14 constituting the driver proper, while from said head there extends a threaded rod 11 which engages with a corresponding thread in a nut 10. It may be stated in further explanation of the particular organization illustrated in the drawings, that the various parts are mounted upon a base-plate 1, although obviously the supporting member upon which they are mounted will generally vary with the construction and nature of the machine with which the mechanism of the mechanical movement may be combined or to which it may be applied. In the particular construction herein set forth, the nut 10 is supported upon an upright 3 erected upon the base-plate, while a shaft 4 extending through the hollow bore of the threaded rod 11, serves to rotate and hence longitudinally shift the threaded rod and the head 13 by reason of the engagement of a keyway 12 in such shaft with a pin or key (not shown) extending from the parts mounted thereon. A well known form of device for imparting aAto-and-fro movement to the head and its threaded rod, in other words, for accomplishing the rotation of the shaft 4 in opposite directions is illustrated, consisting of a fast and loose pulley construction. The two side pulleys 6 and 7 are loosely mounted upon the shaft while the intermediate pulley 5 (constituting the relatively narrow driving pulley) is hxed thereto, open and cross belts, designated respectively by 9c and y, being adapted to engage either with one loose pulley and the driving pulley, or with the other loose pulley and the driving pulley in the well known manner. In the construction illustrated, longitudinal movement of the shaft 4 is prevented by a collar 8 which bears against one side of the journal bearing 2 against the opposite side of which bears the hub of the pulley 6, a collar g being secured to the shaft to hold the loose pulley 7 thereon. Combined with the fast and loose pulley construction is a shipper rod 43 longitudinally reciprocative in bearings 44 and 45 erected upon the base 1 and having contact pieces 51 and 52, whose hub portions 53 and 54, respectively, are secured (preferably adj justably) to the shipper rod 43 with their contact arms in such position that the head 13 during the to-and-fro movement thereof may engage with them alternately to effect a similar movement of the shipper rod 43. By means of pins extending from a lever 48 fulcrumed to the base by a bracket 49 and pivoted to the shipper rod, the aforesaid open and cross belts may be likewise shifted alternately onto the pulleys 6 and 7, it being readily understood that while one of the belts is acting as a driving belt the other belt of the pair is ineffective as a driver by reason of its engagement with one of the loose pulleys. Evidently the extent of travel of the head 13 and its associated parts may be altered by properly locating the aforesaid contact pieces upon the shipper rod, this rod is illustrated in the drawings as having pivoted to it a manually-operative lever 46 which is fulcrumed to a stud 47 on the base, thus enabling the direction of longitudinal movef ment of the head and threaded rod to be reversed at any point desired by the operator independently of the operation of the automatic reversing means hereinbefore described.

Coming now to a description of the actuatable member whose movement is effected through the engagement therewith of the driving member, this actuatable member is, in the present instance, in the form of a head 16 oscillatory about the axis of a shaft 17 j ournaled in bearings 18 and 19 erected upon the base plate. This head is provided with a recess 15 with the opposite end walls of which the sides of the tooth or projection 14 are adapted to engage.

A particular feature of the present invention relates especially to mechanism subsidiary, as respects its function, to the operation of the driver or driving member hereinbefore described, and effective to cause the ultimate and definite positioning of the actuatable member and its associated parts when their motion shall have been initiated by reason of the engagement of the moving toothed driving member with one or the other of the end walls of the recess 15. The action of the subsidiary mechanism, hereinafter to be described, is therefore supplemental to the action of the driver in so far as it positively continues the motion of the actuatable member arising from the engagement, as aforesaid. Hence, while the driver operates to actuate to some extent the actuatable member, it does not accomplish the shifting of the latter member to the final and ultimate position which it is designed it shall have, the subsidiary actuator being brought into play to effect the shifting of the actuatable member to its limiting position. This subsidiary actuator comprises, in its most convenient form a spring, such as 33, attached at one end to a fixed part and exerting a pull by vlOO IOS

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reason of its tension upon an arm 30 (to a projecting stud 32 of which, in this instance, the opposite end of the spring is attached) while the arm itself is pivoted at one end to an upright erected upon a block 26, which, it may be here premised, is preferably adjustably secured with reference to the base plate 1 for a purpose that will be more fully here inafter set forth. To the vibratory end of the arm 30 is pivoted a link 31, the opposite end of which is likewise pivoted to the head 16 constituting the actuatable member. Now it is plain that (assuming the spring 33 to be under tension) when the line of effort exerted by the spring-pressed arm 3() passes through the pivotal axes of the link-to-arm and of the link-to-head connections and the axis about which the actuatable member turns, no motion will be transmitted to said actuatable member; neither will any motion be occasioned until the inclination of the line of effort exerted by the spring-pressed arm through the link on the actuatable member passes to one side or the other of the aforesaid axis of the actuatable member to an amount sufficient to create a torque adequate to overcome the friction of the movable parts andthe further resistance to movement which they may offer. Vhen the torque shall have become of sufficient magnitude for this purpose, due to the engagement of the moving tooth 14 with one wall or the other of the recess 15, the spring 33 will then serve to turn the actuatable member independent of any effort exerted thereupon by suchtooth. In order to control the action of the spring as an actuator and for the purpose of defining the limiting position in both directions which the actuatable member may assume, shoulders are formed thereupon or upon some part moving in unison therewith, which co-operate with a hxed stop to define such limiting positions. In the form of this controlling means 'here shown, the head 16 is provided with a recess 36 into which projects a finger or stop 35 extending from a fixed part and co-operable with the end walls of such recess to arrest the motion of the actuatable member.

As before stated, I prefer to make the block 26 adjustable, as by this means, and assuming that the head 16 is adjustable in unison with it l am enabled to vary the point in the line of travel in each direction at which engagement of the tooth 14 with either one or the other of the end walls of the recess 15 takes place; in other words, the point at which the actuatable member is actuated. For this purpose there extends from the block 26 an arm 25 which embraces an annular groove in the hub-like extension 24 of the head 16, and to enable the block 26 to be fixedly secured in a position to which it may have been adjusted, the same is slidable to and fro upon guideways having an undercut or dovetailed slot 28 to the side walls of which the block may be clamped by means of a clamping device, such as a bolt and nut 29. The shaft 17 upon which the head 16 is mounted turns in unison with the latter; for permitting the longitudinal movement of such head along the rotative shaft the latter may be provided with a pineand-slot connection, here consisting of a slot or keyway 23 formed in the shaft with which engages a pin or key (not shown), extending from the 4head 16 or its fixedly connected parts.

The motion of the shaft 17 may be taken therefrom in any desired manner and made use of in accordance with the requirements of the mechanism or machine with which the mechanical movement is combined. ln the particular construction set forth in the drawings attached to the present specification I have shown an indicating device for indicat ing to the observer the motion of the shaft and the times when or during which the shaft occupies either one or the other of its limiting positions. This device comprises a furcated arm 22 attached to the shaft and in the slot between the side pieces of which arm there works a crosspin 37 extending from an arm 38 attached to a shaft 39 mounted in a bearing 40 erected on the base plate. To this shaft 39 is affixed a pointer 42 movable across the face of an indicator sector 41 from one side to the other thereof. The hub of the arm 22 is in close relation to the face of the journal bearing 19 supported on an upright 19/, while longitudinal movement of the shaft to the right in Fig. 1'is prevented by a collar 20, which is in close relation to the face of the journal bearing 13 supported on an upright 18.

An embodiment, such as has been herein before described, of the present mechanical' movement operates substantially in the following manner g Assuming that belt to be the driving belt for the time being, which serves to so rotate the shaft 4 as to move the threaded rod 11 and head 13 toward the right in Fig. 1 (an initial or starting position being assumed for these parts in which they occupy their extreme positions at the left in that figure) the head 13 will rotate and traverse its path from left to right until the uppermost face of the tooth 14 on theV head comes into engagement with the opposed face of the recess 15, the position of the actuatable member being at this time as indicated in Fig. 6. Further rotation of the head will carry the actuatable member or head 16 in a direction contrary to the direction of motion of the hands of a watch until the link 31 shall have assed a vertical position and become inclined to the left or toward the rear of the machine to an extent sufficient to permit the spring 33 to perf-crm its function as an actuator. if, during this action of the spring, the tooth 14 shall not have moved 'by reason of TOO IIO

the longitudinal movement of the threaded rod 11 out of thefrecess 15, the opposite, that is the lower, face of the tooth 14 Will act as a retardant face until the stop 35 shall have contacted with that face of the recess 36 Which is approaching it, this retardant effect ensuing of course only when the rotary motion of the head 13 is sul'liciently slow to cause it to arise. Upon Contact being made at this latter point the motion ofthe head 16 is arrested, but the relation of the parts is such as to permit the tooth 14 to freely pass out of the recess 15. y

Combined rotary and longitudinal movement of the head 13 noW continues until the same is brought into contact with the contact piece 52 upon the shipper rod 43, Whereupon further longitudinal movement of the head effects the shifting of the belts, and, as will be readily understood, the reverse motion, both longitudinal and rotary, of the head. When during the traverse of the head 13 to the left in Fig. 1, the face of the tooth 14 opposite to that which functions as a Working face during the immediately preceding motion comes in contact With the opposed end face of the recess 15, the motion of the actuatable member and its associated parts Will be reversed, the stop 35 now being brought into contact as a result of the tension of the spring 33 with the opposite end Wall of the recess 36, the link 31 now being inclined in the opposite direction and the inal relative disposition of the parts being represented as in Fig. 6.`

The combined motion of the driving member may be reversed at any point in its line of travel by the manual operation of the lever 46, as already described, While if the block 26 is shifted to such an extent as to enable the tooth 14 to engage With the end Walls of the recess 15 in the adjusted position of the actuatable member, the point in the line of travel of the driving member at Which the actuatable member is operated may be altered. This latter alterability is indicated in a diagrammatic Way in Fig. 7, in Which the breaks O in the horizontal lines in changing from one plane to another represent in a conventional Way the points at which the actuation of 'the actuatable member takes place, and by representing such breaks as occurring at different points in thehorizontal lines a shifting of the i position of the slide block is signified.

Having described my invention, I claim- 1. The combination With a rotative and reeiprocatory driving member movable along apredetermined path, of an actuatable member adapted to be actuated thereby at some one point in the line of movement of the driving member.

2. The combination with a rotative and reciprocatory driving member movable to and iro along a predetermined path, of an actuatable member located in said path and adapted to be actuated thereby at a prede termined point in the line of movement thereof in each direction.

3. The combination With a rotative and reciprocatory driving member movable along a predetermined path, of an actuatable member located in position to be initially actuated by said driving member at some point in the line ol movement thereof, and an actuator for continuing the motion of the actuatable member after the inauguration of its motion by the driving member.

4. The combination With a rotative and reciprocatory driving member movable to and fro along a predetermined path, of an actuatable member located to be initially actuated thereby at some point in the line of movement of the driving member in each direction, and a subsidiary actuator for continuing the motion of the actuable member after the inauguration of its motion by the driving member.

5. The combination With a rotative and reciprocatory driving member movable along a predetermined rectilinear path, of an actuatable member located to be actuated by said driving member at a predetermined point in the line of movement of the driving member.

6. The combination With a rotative and reciprocatory driving member movable to and fro along a predetermined rectilinear path, of an actuatable member located to be actuated by said driving member at a predetermined point in the line of movement of the driving member in each direction.

7. The combination With a driving member movable along a predetermined rectilinear path, of an actuatable member located to be .initially actuated thereby at some point in the line of movement of the driving member, and an actuator for continuing the motion of the actuatable member after the inauguration of its motion by the driving member.

8. The combination with a driving member movable to and i'ro along a predetermined rectilinear path, of an actuatable lmember located to be initially actuated thereby at some point in the line of movement of the driving member in each direction, and a subsidiary actuator for continuing the motion of the actuatable member after the inauguration of its motion by the driving member.

9. The combination With a driving member movable to and fro along a predeten mined path, of a rotative actuatable member located to be actuated by said driving member at a predetermined point in the line of movement of the driving member in each direction.

10. 'The combination With a driving member movable along a predetermined path, of a rotative actuatable member located to be initially actuated thereby at some point in IOO IIO

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the line oi movement of the driving member, and an actuator for continuing the motion of the actuatable member after the inauguration oi' its motion by the driving member.

11. The combination with a driving member movable to and fro along a predetermined path, oi" a rotative actuatable member located to be initially actuated thereby at some point in the line of movement of the driving member in each direction, and a subsidiary actuator for continuing the motion oi the actuatable member after the inauguration of' its motion by the 'driving member.

12. The combination With a driving member movable to and iro along a predetermined rectilinear path, of a rotative actuatable member located to be actuated by said driving member at a predetermined point in the line of movement of the driving member in each direction.

13. The combination With a driving member movable along a predetermined rectilinear path, of a rotative actuatable member located to be initially actuated thereby at some point of the driving member, and an actuator for continuing the motion of the actuatable member after the inauguration of its motion by the driving member.

14. The combination with a driving member movable to and fro along a predetermined rectilinear path, of a rotative actuatable member located to be initially actuated thereby at some point in the line of movement ofthe driving member in each direction, and a subsidiary actuator for continuing the motion of the actuatable member after the inauguration of its motion by the driving member.

15. Vihe combination With a rotative driving member movable along a predetermined rectilinear path, of an actuatable member also movable along a predetermined path at Will and located to be initially actuated by said driving member at a predetermined point in the line of movement of the driving member, and an actuator for continuing the motion of the actuatable member after the inauguration of its motion by the driving member.

16. The combination with a rotative driving member movable to and fro along a predeterminedrectilinear path, of an actuatable member also movable along a predetermined path at Will and located to be initially actuated by said driving member at a predetermined point in the line of movement of the driving member in each direction, and a subsidiary actuator for continuing the motion of the actuatable member after the inauguration oi its motion by the driving member.

17. The combination with a rotative driving member movable along a predetermined path, of a rotative actuatable member also movable along a predetermined path at Will and adapted to be actuated by the driving member at some point in the line of movement thereof.

18. The combination With a rotative driving member movable to and iro along a predetermined path, of a rotative actuatable member also movable along a predetermined path at will and located to be actuated by said driving member at a predetermined point in the line of movement of' the driving member in each direction.

19. The combination With a rotative driving member movable along a predetermined path, of a rotative actuatable member also movable along a predetermined path at will and located to be initially actuated by said driving member at a predetermined point in the line of movement of the driving member, and an actuator for continuing the motion of the actuatable member after its inauguration by the driving member.

20. The combination With a rotative driving member movable to and `tro along a predetermined path, of a rotative actuatable member also movable along a predetermined path at Will and located to be initially actuated by said driving member at a predetermined point in the line oi movement oi the driving member in each direction, and a subsidiary actuator forcontinuing the motion of the actuatable member after its inauguration by the driving member.

21. The combination With a rotative driving member movable along a predetermined rectilinear path, of a rotative actuatable member located to be actuated by said driving member at a predetermined point in the line of movement of the driving member.

22. The combination with a rotative driving member movable along a predetermined rectilinear path, of an actuatable member adapted to be initially actuated thereby at some point in the line of movement of the driving member, an actuator for continuing the motion of the actuatable member .after its inauguration by the driving member, and co-operative stop faces for determining the limiting positions of said actuatable member.

23. The combination with a rotative driving member movable to and fro along apredetermined rectilinear ath, of an actuatable member adapted to be initially actuated thereby at some point in the line of movement of the driving member in each direction, a subsidiary actuator for continuing the motion of the actuatable member after its inauguration by the driving member7 and cooperative stop faces for determining the limiting positions of said actuatable member.

24. The combination with a rotative driving member movable along a predetermined path, of a rotative actuatable member adapted to be actuated thereby at some point in the line of movement of the driving member,

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and co-operative stop faces for determining y ilghe limiting positions of said actuatable mem- 25. The combination with a rotative driving member movable to and fro along a predetermined path, of a rotative actuatable member adapted to be actuated by said driving member at a predetermined oint in the line of movement thereof in eacli direction, and co-operative stop faces for determining the limiting positions of said actuatable member.

26. The combination with a rotative driving member movable along a predetermined path, of a rotative actuatable member adapted to be initially actuated by said driving member at a predetermined point in the line of movement thereof, an actuator for continuing the motion of the actuatable member after its inauguration by the driving member, and co-operative stop faces for determining the limiting positions of said actuatable member. v

27. .The combination With a rotative driving member movable to and fro along a predetermined path, of a rotative actuatable member adapted to be initially actuated by said driving member at a predetermined point in the line of movement thereof in each direction, a subsidiary actuator for continuing the motion of the Vactuatable member after its actuation by the driving member, and co-o erative stop faces for determining the limiting positions of said actuatable member.

23. The combination With a rotative driving member movable along a predetermined rectilinear path, of a rotative actuatable member adapted to be actuated thereby at some point 1n the line of movement of the driving member, and co-operative stop faces for determining the limiting positions of said actuatable member.

29. The combination With a driving member and an actuatable member, said members -having co-operative faces adapted at times to engage and thereby initiate the movement of the. actuatable member, of a subsidiary actuator for continuing the motion of the actuatable member after its inauguration by the driving member, and cooperative faces for determining the limiting positions of said actuatable member.

30. The combination with a driving member and an actuatable member, saidmembers having opposite pairs of co-operative faces adapted at times to engage and thereby initiate the movement of the actuatable member first in o'ne direction and then in the opposite, of a subsidiary actuator for continuing the motion of the actuatable member i after its inauguration by the driving member, and co-operative faces for determining the limiting positions of said actuatable member.

31. The combination with a driving member and a rotative actuatable member, said members having oppositepairs of co-operative faces adapted at times to engage and thereby initiate the movement of the actuatable member first in one direction and then in the opposite, of a subsidiary actuator for continuing the motion of the actuatable member after its inauguration by the driving member, and co-,operative faces for determining the limiting positions of said actuatable member.

32. The combination With a rotative driving member movable to and fro, and a rotative actuatable member, said members having co-operative faces adapted at times to engage and thereby initiate the movement of the actuatable member, of a subsidiary actuator for continuing the motion of the actuatable member after its inauguration by the driving member, and co-operative faces for determining the limiting positions of said actuatable member,

33. The combination With a rotative driving member movable to and fro in a rectilinear path anda rotative actuatable member, said members having co-operative faces adapted to engage and thereby initiate the movement of the actuatable member, of a subsidiary actuator for continuing the motion of the actuatable member after its inauguration by the driving member, and cooperative faces for determining the limiting positions of said actuatable member.

34. The combination with a driving member andan actuatable member, said members having co-operative faces adapted at times to engage and thereby initiate the movement of the actuatable member, of a spring pressed. member having a shiftable connection With said actuatable member, whereby the line of effort is applied in different directions When said actuatable member is shifted, and cooperative faces for determining the limiting positions of said actuatable member.

35. The combination with a driving member and an. actuatable member, said members having opposite pairs of co-operative faces adapted at times to engage and thereby initiate the movement of the actuatable member first in one direction and then in the opposite, of a spring-pressed member having a shiftable connection With said actuatable member, whereby the line of effort is applied in different directions When said actuatable member is shifted, and co-operative faces for determining the limiting positions of said actuatable member.

36. The combination with a rotative driving member movable to and fro and an actuatable member, said members having cooperative faces adapted at times to engage and thereby initiate the movement of the actuatable member, of a spring-pressed memlOO TOS

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ber having a shiftable connection with said actuatable member, whereby the line of effort is applied in different directions when saidL actuatable member is shifted, and cooperative faces for determining the limiting positions of said actuatable member.

37. The combination with a driving member and rotative actuatable member, said members having co-operative faces adapted at times to engage and thereby initiate the movement of the actuatable member, of a spring-pressed member having a shiftable connection with said actuatable member, whereby the line of effort is applied in different directions when said actuatable member is shifted, and co-operative faces for determining the limiting positions of said actuatable member.

38. The combination with a rotative driving member movable to and fro and a rotative actuatablemember, said members having co-operative faces adapted at times to engage and thereby initiate the movement of the actuatable member, of a spring-pressed member having a shiftable connection with said actuatable member, whereby the line of effort is applied in different directions when said actuatable member is shifted, and cooperative faces for determining the limiting` positions of said actuatable member.

39. The combination with a driving member and a rotatively mounted actuatable member, said members having opposite pairs of co-operative faces adapted at timesto engage and thereby initiate the movement of the actuatable member, of a spring-pressed arm, a link pivotally connecting said arm with the actuatable member and shiftable to incline the line of effort from one side of the axis of the actuatable member to the other. and co-operative faces for determining the limiting positions of said actuatable member.

40. The combination with a rotative driving member rectilinearly movable to and fro and a rotatively mounted actuatable member, saidv members having opposite pairs of co-operative faces adapted at times to enand thereby initiate the movement of 'the actuatable member, of a spring-pressed arm, a link pivotally connecting said arm with the actuatable member and shiftable to incline the line of effort from one side of the axis of the actuatable member to the other, and co-operative faces for determining the limiting` positions of said actuatable member. 41. The combination with a rotative driving member rectilinearly movable to and fro and a rotatively mounted actuatable member adjustable in line with the said movement of the driving` member, said members having opposite pairs of co-operative faces adapted at times to engage and thereby initiate the movement of the actuatable member, of a spring-pressed arm, a link pivotally connectin(T said arm with the actuatable member and shift-able to incline the line of eflort from one side of the axis of the actuatable member to the other, and co-operative faces for determining the limiting positions of said actuatable member.

l?. The combination of a drivingI head having a projecting tooth and a rotatively mounted actuatable head having a recess with the end walls of which said tooth is adapted to engage, and a spring-pressed member for continuing the movement of said actuatable head after such motion has been initiated by the driving head. 43. The combination of a driving head having a projecting tooth, means for traversing the driving head back and forth, a rotatively mounted actuatable head having a recess with the end walls of which said tooth is adapted to engage, and a spring-pressed member for continuing the movement of said actuatable head after such motion has been initiated by the driving head.

44 The combination of a driving head having a projecting tooth and a rotatively mounted actuatable head having a recess with the end walls of which said tooth is vadapted to engage, a spring-pressed member for continuing the movement of said actuatable head after such motion has been mitiated by the driving head, a threaded rod se- 9 cured to the driving head, and a nut with which the thread on such rod engages.

45. The combination of a driving head having a projecting tooth and a rotatively mounted actu atable head having a recess with the end walls of which said tooth is adapted to engage, a spring-pressed. member for continuing the movement of said actuatable .head after such motion has been initiated. by the driving head, a threaded rod secured to the driving head, a nut with which. the thread on such rod engages, and means governed by said driving h ead, for controlling the direction of motion thereof.

46. The combination of a driving head having a projecting tooth and a rotatively mounted actuatable head having a recess with the end walls of which said tooth is adapted to engage, a spring-pressed arm, and a` link pivoted to said arm and to said actuatable head, for continuing the movement of said actuatable head after such motion has been initiated by the driving head.

47. The combination of a driving head having a projecting tooth, means for traversing the driving head back and forth, a rotatively mounted actuatable head having arecess with theend walls of which said tooth is adapted to engage, a spring-pressed arm, and a link pivoted to said. arm and to said actuatable head for continuing the movement of IOC said actuatable head after such motion has been initiated by the driving head.

48. The combination of a driving head having a projecting tooth and a rotatively mounted actuatable head having a recess With the end Walls of Which said tooth is adapted to engage, a spring-pressed arm, a link pivoted to said arm and to said actuatable head, for continuing the movement of said actuatable head after suchmotion has been initiated by the driving head, a threaded rod secured to the driving head, and a nut With Which the thread on such rod engages.

49. The combination of a driving member having a projecting tooth and a rotatively mounted actuatable head having a recess with the end Walls of Which said tooth is adapted to engage, a spring-pressed arm, a link pivoted to said arm and to said actuatable head, for continuing the movement of said actuatable head after such motion has been initiated by the driving head, a threaded rod secured to the driving head, a nut with. which the thread on such rod engages, and means governed by said driving head for controlling the direction of motion thereof.

50. The combination of a driving head having a projecting tooth and a rotatively mounted actuatable head having a recess With the end Walls of which said tooth is adapted to engage said actuatable head being adjustable in the line of movement of the driving head, and a spring-pressed member for continuing the movement of said actuatable head after such motion has been initiated by the driving head.

51. The combination of a driving head having a projecting tooth and a rotatably mounted actuatable head having a recess With the end Walls of Which said tooth is adapted to engage, said actuatable head being adjustable in the line of movement of the driving head, a spring-pressed arm, and a link pivoted to said arm and to said actuatable head, and a spring-pressed member for continuing the movement of said actuatable head after luch motion has been initiated by the driving ead.

52. The combination of a driving head having a projecting tooth, means for traversing the head back and forth a rotatively mounted actuatable head having a recess With the end Walls of Which said tooth is adapted to engage, said actuatable head being adjustable in the line of movement of the driving head, a spring-pressed arm, and a link pivoted to said arm and to said actuatable head, for continuing the movement of said actuatable head after such motion has been initiated by the driving head.

53. The combination of a driving head having a projecting tooth and a rotatively mounted actuatable head having a recess with the end Walls of which said tooth is adapted to engage, said actuatable head being adjustable in the line of movement of the driving head, a spring-pressed arm, a link pivoted to said arm and to said actuatablehead for continuing the movement of said actuatable head after such motion has been initiated by the driving head, a threaded rod secured to the driving head and a nut With which the thread on such rod engages.

54. The combination of a driving rod having -a projecting tooth and a rotatively mounted actuatable head having a recess With the end Walls of Which said tooth is adapted to engage, said actuatable head being adjustable in the line of movement of the driving head, a spring-pressed arm, a link pivoted to said arm and to said actuatable head for continuing the movement of said actuatable head after such motion has been initiated by the driving head, a threaded rod secured to the driving head, a nut With Which the thread on such rod engages, and means governed by said driving head Jfor controlling the direction of motion thereof.

55. The combination of a driving head having a projecting tooth and a rotatively mounted actuatable head having a recess With the end Walls of Which said tooth is adapted to engage, said actuatable head being adjustable in the line of movement of the driving head, a spring-pressed member for continuing the movement of said actuatable head after such motion has been initiated by the driving head, a threaded rod secured to the driving head, a nut With Which the thread on such rod engages,l and means governed by said driving head for controlling its direction of movement and comprising a shipper bar and contact pieces secured thereto.

56. The combination of a driving head having a projecting tooth and a rotatively mounted actuatable head having a recess with the end Walls of Which said tooth is adapted to engage, said actuatable head being adjustable in the line of movement of the driving head, a spring-pressed arm, a link pivoted to said arm and to said adjustable head for continuing the movement of said actuatable head after such motion has been initiated by the driving head, and means governed by said driving head for controlling its direction of movement and comprising a shipper bar and contact pieces secured thereto.

57. The combination of a driving head having a projecting tooth and a rotatively mounted actuatable head having a recess With the end Walls of Which said tooth is adapted to engage, said actuatable head being adjustable in the line of movement of the drivinghead, a spring-pressed arm, a link pivotcd to said arm and to said actuatable IOO IIO

head for controlling the movement of said a shipper bar and Contact pieces secured aetuatable head after such motion has been thereto. initiated by the driving head7 a threaded rod secured to the driving head, a nut with which 5 the thread on such rod engages, and means Witnesses:

governed by said driving head for controlling JOHN O. SEIFERT, its direction of4 movement and comprising FRED. J. DOLE.

FRANors H. RICHARDS. 

